diff --git a/tests/fuzz/fuzz_client.c b/tests/fuzz/fuzz_client.c
index f2eaa3d..38ad2fd 100644
--- a/tests/fuzz/fuzz_client.c
+++ b/tests/fuzz/fuzz_client.c
@@ -9,6 +9,7 @@
 #include <stdint.h>
 
 
+#ifdef MBEDTLS_SSL_CLI_C
 static bool initialized = 0;
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 static mbedtls_x509_crt cacert;
@@ -25,6 +26,7 @@
 #endif
 
 const char *pers = "fuzz_client";
+#endif //MBEDTLS_SSL_CLI_C
 
 
 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
diff --git a/tests/fuzz/fuzz_dtlsclient.c b/tests/fuzz/fuzz_dtlsclient.c
index 4205917..fb872ef 100644
--- a/tests/fuzz/fuzz_dtlsclient.c
+++ b/tests/fuzz/fuzz_dtlsclient.c
@@ -11,14 +11,15 @@
 #include "mbedtls/timing.h"
 
 
+#ifdef MBEDTLS_SSL_CLI_C
 static bool initialized = 0;
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 static mbedtls_x509_crt cacert;
 #endif
 
-
 const char *pers = "fuzz_dtlsclient";
-#endif
+#endif // MBEDTLS_SSL_CLI_C
+#endif // MBEDTLS_SSL_PROTO_DTLS
 
 
 
diff --git a/tests/fuzz/fuzz_dtlsserver.c b/tests/fuzz/fuzz_dtlsserver.c
index 619661f..ff9a60b 100644
--- a/tests/fuzz/fuzz_dtlsserver.c
+++ b/tests/fuzz/fuzz_dtlsserver.c
@@ -12,6 +12,7 @@
 #include "mbedtls/ssl_cookie.h"
 
 
+#ifdef MBEDTLS_SSL_SRV_C
 const char *pers = "fuzz_dtlsserver";
 const unsigned char client_ip[4] = {0x7F, 0, 0, 1};
 static bool initialized = 0;
@@ -19,7 +20,8 @@
 static mbedtls_x509_crt srvcert;
 static mbedtls_pk_context pkey;
 #endif
-#endif
+#endif // MBEDTLS_SSL_SRV_C
+#endif // MBEDTLS_SSL_PROTO_DTLS
 
 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
 #if defined(MBEDTLS_SSL_PROTO_DTLS) && defined(MBEDTLS_SSL_SRV_C)
diff --git a/tests/fuzz/fuzz_server.c b/tests/fuzz/fuzz_server.c
index 0a2f3a9..d751a71 100644
--- a/tests/fuzz/fuzz_server.c
+++ b/tests/fuzz/fuzz_server.c
@@ -10,6 +10,7 @@
 #include <stdint.h>
 
 
+#ifdef MBEDTLS_SSL_SRV_C
 const char *pers = "fuzz_server";
 static bool initialized = 0;
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
@@ -25,6 +26,7 @@
 };
 const char psk_id[] = "Client_identity";
 #endif
+#endif // MBEDTLS_SSL_SRV_C
 
 
 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {